Flyer



July 7, 1936- P. A. GWALTNEY ET Al. 2,046,376

- FLYER Filed Oct. 29, 1935 \snu PH: LIP A. @WALT/vn* WILL/mwl G. REYNo/DS [wem-aes @www Patented July 7, 1936 UNITED STATES FLYER Philip A.Gwaltney, McColl, S. C., and William G Reynolds, Charlotte, N. C. Y

Application october 29, 1935, serial No. 47,246

a claims. (C1. 11s- 57) This invention relates to improvements in flyersfor roving frames and relates especially to means for compacting theroving as it passes through the presser foot so thatrthe short fiberswill be rendered parallel to each other as well as parallel to thelonger fibers.

In the process of drawing the slivers in roving frames the purpose is togradually reduce the sliver or roving in size and at the same timerender all of the fibers parallel to each other to increase theirstrength when they are twisted or spun. In drawing frames, the longfibers are engaged by the rolls and are straightened out due to thefront rollers travelling much faster than the middle rollers, and theVmiddle rollers rotating at a greater number of revolutions per minutethan the back rollers. This causes a proper placing of the longer bers,but the short staple occurring along with the long staple is notrendered parallel as the rollers do not get the proper bite thereon. Bypassing the sliver through a constricted eye on the presser foot thiscondenses the fibers and causes a parallelization of the short staplealso. By having the small hole and condensing the sliver as it passestherethrough, air currents are prohibited from passing through thishole. Heretofore, there has been a large hole and no condensing of thesliver, thus resulting in a stream of air being forced through this holeto disrupt the fibers, and esspecially the short fibers.

This improved presser foot is designed for use on any type of flyerframe and when used on twisters the improved presser foot, especially ina wet twist operation, will cause the projecting short fibers to bepressed flat and while in such condition will be laid onto the yarnpackage.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds, when taken in connection Y withthe accompanying drawing, in which:-

Figure 1 is a transverse vertical sectional view taken along through aportion of a roving frame Figure 'l is an isometric view of the rovingstrand guide mechanism detached from the flyer. I Referring morespecifically to the drawing, the numeral I0 denotes a portion of aroving frame which has mounted on the upper portion thereof a pluralityof roll stands Il, only one of which is shown, having lowerl rolls I2and upper rolls I3 rotatably mounted therein. Between these rolls isadapted to pass a strand of roving which roving is constantly reducedinrsize as it progresses from the carding machine'through variousdrawing operations. From the rolls I2 and I3 the roving passes throughthe hole I5 in the upper portion of flyer I6 and` then outwardly throughhole I1, around the topportion of the flyer and again downwardly throughthe interior of leg I8 of the flyer I 6. Another leg I9 is ldisposed onthe opposite side of the pivot point of flyer I3 in order tocounter-balance the flyer about its point of rotation. The flyer I6 hasa pin 20 penetrating the upper end thereof which is adapted to fit inslot 2| in the upper end of spindle 22. It will be noted that the upperend of spindle 22 is slightly tapered and is adapted to fit into cavity23 in flyer IB.

The lower end of spindle 22 has a beveled gear 25 fixedly secured on thelower end thereof which gear is adapted to mesh with a larger bevel gear26 xedly secured on longitudinally disposed When shaft 21 is rotated, itis evident that rotation will be imparted to shaft 22 and to the flyer I6. The intermediate portion of shaft 22 is rotatably mounted in bracket28 and tubular member 29 which is integral with bracket 28, said bracketbeing secured lto traverse rail 30 by any suitable means such as bolts3|.

-Rotatably mounted on tubular member 29 is a bevel gear 35 which gearmeshes with a larger gear 36 mounted on longitudinally disposed shaft31. The upper end of the hub portion of gear-35 has a rim 39 integraltherewith upon which is adapted to rest the base of a bobbin. or quill4Il. It will be noted that the rim 39 has an upwardly projecting member42 integral therewith which is adapted to t into a slot in the lower endof quill 45 in order to cause the quill to rotate along with the gear35. In the operation of the machine both the flyer I6 and the quill 40rotate in the same direction but the bobbin 40 rotates at a. higher rateof speed than the flyer I6 inv order that the yarn may be wound onto thebobbin.

Loosely mounted around theupper central portion of leg I8 is the upperportion of presser 44.

Presser 44 has a circular portion 45 on the upper end thereof whichsurrounds the leg I8 and the lower portion of presser 44 also has acircular por; tion 46 surrounding the!V lower portion of leg I8.Integral with the lo-wer end of presser 44 presser foot 41 which has aplate 41a, on the free. end

thereof,V said plate having a centrally disposed VVhole 48 cut thereinthrough which the roving strand I4 passes. After the strand I4 leavesVthe Y lower endV of leg I 8 it is wrapped twice around the 'presserfoot 41 and is then placed-in hole 48 through the slot or passageway 58'cut in the =upper Vsurface of 'plate 41a.. Theplate 41a has a slightgroove 5I cut on the interior surface of the plate adj acont the packageof yarn in order to guide the it Vleaves the eyelet ora strand in ameasure after hole48.

By observing Figuresv 4 "and'fjitg is: that the hole 48 is larger at thepoint of entranceof the yarn than it is at the point of `exitofthe-yarn, and" p Y also set at an acute angleito the sides of plate41a. Since the yarn, which passes through this holei sufficiently, largeto` lllthe entire f hole,y this converginggand'condensing-featurefhasatendency to :cause :the-bers .in.-v fthestrand of v-rov'ing' or yarntofbe :compacted and'V also to. bestraightened out inf parallel relationtoieachother. Were it Ynot Y Y for the', fact that .this holeg-isconstructed-.in 'this Y manner-'1and;off-suchfafpredeterminedsizegasgwill fit` ther-size. of: thestrand of yarn.V drawn there#through,l there would-A beV no converging feature neither wouldtheretbeV al tendencyito: compact'the strands, and holdthem in-vparallel relation` to each other. Insteadfthere- -is al tendency whenazlarge eyelet`v is used; that fis.:- wherev the eyelet isfzverymuchrlargerth'anthe strand. drawn therethrough,V for the fibersztofuzz'upg., Dueto therapidityat which thestr'a'ndpassesfthroughzthehole,in conkan acute angle `to" vpresser foot.-

ventional presser foots,v the currents of air will Ycause the flbers'toflow outwardly on the outside I of the strand as the air is drawnthrough the large 1 hole'48 and therefore defeat the principal object ofthe` drawing out process which sftoY cause the fibers to bestraightenedout in parallel relation to each other. By Yhaving a, funnel-shapedhole' V which is fllled by the strand passing therethrough Y the airisnot permitted to enter the hole in 'thevi presser foot ,andV thereftn'eVthe disruptingfactor' ofthe air passing through said hole is eliminated@In the drawing and specication therehas been Set forth a preferredembodiment of the invention fWeclaimr, i

1.' An'improved flyer for flyer frames compris-Y ing.aa'presservfoot'fhavingj a; funnel-shaped' eye thereinthrough which ispassed a strand normally f largerthanthe smallest portion kof the eye.

2. Apresser'foot for flyers having-.a hole there-VY through which is:funnel-shaped and disposedY at the=-planefoccupied byY the d 3. That.method fof spinning which `comprises Windinga strand onto a'package andconverging 'and condensing the strand as'it is wound ontorthe package by[passing` it Vthrough a` funnel-shaped passagewaywhoserestrictedportionis smaller thanr-the normal.v thickness of thestrand.

PHILIP A.GWAL'I'NEY.V WILLIAM G. REYNOLDS.

